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Green polyethylene sewage basin with tether float pump and 10 ft cord

Liberty

Liberty P372LE51/A2 21" x 30" 1/2 HP 41.0 gal Simplex Sewage System 115V

SKU CH-DTEQ-GB2DQ MPN P372LE51/A2

A simplex sewage system with a 1/2 HP pump, 41.0 gal basin and 21" x 30" footprint handles 140.0 gpm at 5 ft head

  • Product typeDrain Components
  • 1/2 HP motor delivers 140.0 gpm flow at 5 ft head
  • 0 gal polyethylene basin handles 2 in solids capacity
  • Tether float switch provides automatic actuation control
  • 115V single-phase power with 10 ft cord for standard wiring
  • 24 ft maximum head supports 1725 RPM pump performance

Simplex Sewage System for Residential Waste

The Liberty P372LE51/A2 is a simplex sewage ejector system rated at 1/2 HP and 115V AC for single-phase power. It uses a tether float switch with integral electrical connection to automate pump operation. The polyethylene basin holds 41.0 gallons and measures 21 inches by 30 inches. It handles solids up to 2 inches in diameter for typical residential waste.

Check Voltage and Basin Space Before Installing

Verify the supply circuit provides 115V AC at 60 Hz single-phase power to match the pump rating. Confirm the installation area accommodates the 21 by 30 inch basin footprint and allows access for the 10 foot power cord. The maximum liquid temperature is 140 degrees Fahrenheit. Ensure the discharge piping can handle the required head pressure up to 24 feet.

Replaces Manual or Undersized Ejector Pits

This system upgrades from manual bailing or undersized pits that cannot handle 2 inch solids. The jump is worth it when flow rates of 140.0 gpm at 5 feet of head or 55.0 gpm at 20 feet of head are needed. It suits installations requiring automatic operation via tether float switch. Buyers needing duplex redundancy or higher horsepower should consider other configurations.

How it compares

Measured against everything we stock in Drain Stoppers, Strainers & Traps, at today’s prices. Recalculated every night.

Price $686.99
Pricier than about 91% of the 4,240 comparable items (median $31.99).

Specifications

Product
Brand nameLiberty
Model nameP372LE51/A2
Product typeDrain Components

Questions about this item

What comes with the Liberty P372LE51/A2 sewage system and what must be purchased separately?

The package includes the 1/2 HP pump with 10 ft cord, tether float switch, and 41.0 gal polyethylene basin. Discharge piping, check valve, and vent fittings are not included.

Which flow rate figure should I use to size the system for my installation?

Match the flow rate to your total dynamic head: 140.0 gpm at 5 ft, 118.0 gpm at 10 ft, 92.0 gpm at 15 ft, or 55.0 gpm at 20 ft. The pump reaches a maximum head of 24 ft.

What does the 140.0 gpm rating mean when the system is running in a real basement installation?

At 5 ft of head the pump moves 140.0 gallons per minute, handling solids up to 2 in diameter. Actual output drops as discharge head increases toward the 24 ft maximum.

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